Thistle exterminator



C. H. MEIER Apr-i121, 1931.

THISTLE EXTERMINATOR Filed May 3, 1950 2 Sheets-Sheet l INVEMTOR ATTORNEY THISTLE EXTERMINATOR I Filed May 5, 1930 2 sneetsgh i g a I INVENTOR ATTORNEY -25 5 a? mar/($294M? fer- Patented Apr. 21, 1931 UNITED STATES crmnnns H. MEIER, or POSTVILLE, IOWA THIQSTLE EXTERMINATOR V App lication filed May 3, 1930; Serial No. 449,587.

This inventionrelates to a device for exterminating weeds, such as the Canadian thistle, the general object of the invention being to provide means for bruising or cutting the plants and at the same time ejecting a liquid chemical, such as sodium chlorate,

011 the bruised or out part to kill the plant.

Another object of the invention is to make the device capable of being held and operated by the hands of the user, so that a large number of plants can be treated in the minimum amount of time. p

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describing the invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which 2- Figure 1 is an elevation of the invention.

Figure 2 is a side view thereof.

Figure 3 is a bottom plan view thereof.

Figure 4 is a section on line 4.-4 of Figure 1.

Figure 5 is a section on line 55 of Figure 1.

Figure 6 is a section on line 6-6 of Figure 1.

Figure 7 is a view of a vertical knife which" may be used with the device.

Figure 8 is a view showing place on the device.

Figure 9 is a view of a horizontal knife which may be used with the device.

Figure 10 is an edge view of Figure 9. In these drawings, the letter A indicates a frame which is composed of the two uprights 1 which are convergently arranged in a downward direction, the upper portions of the uprights being connected together by a cross bar 2 and their lower ends being connected together by a member 3 of metal or the like which is formed with a central tubular part to receive a tube 5 of rubber or metal, the tube being frictionally held in the this knife in tubular part when formed of rubber by the indentations 6 formed in the tubular part and penetrating the tube, as shown in Figure 4. A can 7 is supported'between the lower partsof the uprights by the strap 8, this can having a threaded reduced lower end 9 in which is threaded a cap 10 having a hole 11 therein which is so 'locatedthat liquid in the canwill flow through the openinginto the...

tube 5. A tubular extension 12, formed of rubber or metal, has its lower end fitting over the top part of the can, said top of the can having a centrally arranged'hole 13 therein whereby the liquid in the extension 12 canpass into the can. By'arranging the hole in the central part of the top of the can, the

solid portions of said top will enable the de vice to be used on hillsides or in a slanting position. When the extension 12 is formed of rubber, the band 8 holds it on the can, but ifsaid extension is formed of metal, it may be soldered to -the cane -A screen 14 is re movably arranged, in the top of the extension 12 for straining the liquid poured into the device.

a A tapered. plug sliaped valve 15 passes through the reduced part of the can and the hole 11 in the cap and is'adapted to control the flow of liquid from the c an. "A rod-16 is fastenedto 'the top of the valve, and has an'eye" on its upper end through which a rod 17 passes, this rod being hingedly connected to .one of the uprights by having its bent end passingthrough ja hole in'the upright, as

shown at 18 in Figures, andits other end'is adapted to be held in. any one of a plurality of notches 19 in the other upright by the resilientj bands 20. Thus by raising or lowering tube 5 and projectstherefrom, andthis tube. is provided witha plurality of projections 22 which are adapted to bruise or penetrate the plant to be treated so that the liquid will enter the plant and thus kill the same. This plug the rod '17,"the 'rod ldis raised or lowered.

. to adj u'stthe valve 15 with respect to the opencan be made of porous material so that the liquid will pass through the same and it may be formed with a passage 23 through which the liquid can pass. In order to prevent this passage being clogged, I provide a rod 24.- which passes through the passage and through the tube and has its upper and lower ends bent, as at 25, so that when the device is being used, the bent lower end will 1 engage the plant and thus the rod will be forced upwardly and then when the device is moved away from the plant, the rod will drop so that this movement of the rod inthe passa e will prevent clogging of the same.

n some cases, it is desirable to cut the plant so that theliquid .will enter the pores of the plant thro. hthe out part, and to do this, I provide ac amp 26 for engaging the lower of the tube 5 and having a vertically arranged knife 27 thereon for cutting the plants. I also provide a clamp 28 having a horizontal knife 29 thereon so. that this knife can be clampedto the tube and used for cutting a plant by manipulating the device to cause the i -horizontal blade to engage and cutthe plant. The, device can be used without these knives or. either knife can be used or both knives may be used. Theplug can be formed of a rubber strip rolled up with a hollow tube therein and 30 the strip slitted to make it porous so that it will retain asupply of the chemical or liquid to be applied to the plants.

With this device, one can readily bruise or cut the plants and apply the chemical to the bruised or out part to kill the plant.

It is thought from the foregoing description that the advantages and novel features of. the invention will be readily apparent.

It isto be understood'that changes may be 40 made in the construction and in the combination and arrangement; of the several parts, provided that. such changes'fall within the sco of the appended claims.

1. A device ofthe class described comprising an upright frame, a container connected with the lower part of the frame having, a discharge opening, in its bottom, a valve for controlling the opening, means forv adjusting the valve from the top part of the frame, a tube supported from the lower end of the frame and receiving the liquid;from!the container, a plug in the lower endof the tube and constructed to permit the liquid to pass 55 through the same, projections at the lower end 0 the plug for penetrating ortions of a plant to permit liquidto enter t 1e plant and a detachable knife connected with the'lower part of the device for severing the stem of a on plant.

2. A device of the class described comprisinga pair of uprights, a container supported between the uprightsadjacent the lower end thereof, said container having a restricted opening; at itslower end, an extension connected with the upper end of the container, said container having a restricted opening in its upper end for permitting liquid to pass from the extension into the same, a screen at the top part of the extension, a valve for controlling the opening in the lower end, of the container, a rod connected with the valve and passing throughthe container and extension, a cross rod'pivotally connected with one upright adjacent the upper end thereof, the other upright having notches therein for receivin g the free end of the cross rod, the valve rod having an eye through which the cross rod passes, means for holding the cross rod in any one of the notches, a tube supported between the lower ends of the uprights and having its upper end positioned to receive the liquid discharging from the container, a plug in the lower end of the tube having a passage therein, projections on the lower end of the plug and a rod passing through the passage and the tube having its upper and lower ends bent.

In testimony whereof I' aflix my signature.

CHARLES H. MEIER. 

